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Asked: 2026-05-26T08:19:31+00:00

I have a piece of code in javascript which calculates something , There is

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I have a piece of code in javascript which calculates something ,

There is a label in asp.net application , How can I get the value of it from javascript ?

here is i have tried :

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication1.Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>JASP</title>
        <script type="text/javascript">
            var x = document.getElementById("Label1").innerHTML;
            alert(x);
        </script>
</head>
<body>
    <form id="form1" runat="server">
        <asp:Label ID="Label1" runat="server" Text="My Text"></asp:Label>
    </form>
</body>
</html>
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1 Answer

  1. Editorial Team

    Try this:

    var data = document.getElementById('<%=Label1.ClientID%>').innerHTML;

    Update:

    Create a function, place your code inside that and call it where appropriate. Ex:

    <script type="text/javascript">
    function displayText() {
        var x = document.getElementById('<%=Label1.ClientID%>').innerHTML;
        alert(x);
    }
</script>

    Now call the function displayText(), where required.

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